128-bit:
This refers either to the internal graphics
engine or to the path from the controller to the
graphics memory. 3D Prophet graphics boards have
a true 128-bit subsystem because they incorporate both a 128-bit internal graphics
engine as well as a 128-bit path from the controller to the graphics memory,
thus providing enhanced 2D and 3D performance.
OpenGL:
A 3D image calculation standard developed by Silicon Graphics, and supported
by most 3D graphic accelerator boards.
Operating
system:
The program that runs the computer. This is
loaded into memory when you boot up your PC and
acts as an interface between hardware and software.